使 Python 脚本与 xargs 一起工作 [英] Making Python scripts work with xargs

问题描述

使我的 Python 脚本与xargs"配合良好的过程是什么?例如，我希望以下命令可以处理文本文件的每一行，并执行任意命令:

What would be the process of making my Python scripts work well with 'xargs'? For instance, I would like the following command to work through each line of text file, and execute an arbitrary command:

cat servers.txt | ./hardware.py -m 

基本上希望每一行都被传递给 hardware.py 脚本.

Essentially would like each line to be passed to the hardware.py script.

推荐答案

要使您的命令与 xargs 一起使用，您只需要它们接受参数即可.Python 中的参数位于 sys.argv 列表中.通过这种方式，您可以执行以下操作:

To make your commands work with xargs you simply need them to accept arguments. Arguments in Python are in the sys.argv list. In this way you can execute somthing like:

find . -type f -name '*.txt' -print0 | xargs -0 ./myscript.py

可能等价于

./myscript.py ./foo.txt ./biz/foobar.txt ./baz/yougettheidea.txt

为了使您的命令与标准输入一起工作，您还可以使用 sys 模块，这次使用 sys.stdin，您可以将其视为文件.这更像是你给出的例子:

To make your commands work with standard input, you can also use the sys module, this time with sys.stdin, which you can treat as a file. This is more like the example you gave:

./myscript.py < somefile.txt

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